Home / 283,705.32-391,530.84-156,380.60

Finding the Fourth Proportional to 283,705.32, 391,530.84 and 156,380.60

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Solution

The fourth proportional to 283,705.32, 391,530.84 and 156,380.60 is: 215,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,705.32 : 391,530.84 = 156,380.60 : x
  2. Step 2: Convert to fraction form
    283,705.32/391,530.84 = 156,380.60/x
  3. Step 3: Cross multiply
    283,705.32x = 391,530.84 × 156,380.60
  4. Step 4: Simplify right side
    283,705.32x = 61,227,827,677.70
  5. Step 5: Solve for x
    x = 61,227,827,677.70/283,705.32
  6. Step 6: Final answer
    x = 215,814.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.